Radiator core



March 19, 1929. A, ERI KSON 1,705,969

RAfifAToR coR v Filed Aug. 24, 1925 2 Sheets-Sheet 1 illlmllllllli-llllllll- INIV/ENTOR. 4 6 Qflwlw 0,,

ad; w. m

ATTORNEY March 19, 1929. A, ERI KSON 1,705,969

RADIATOR com Filed Aug. 24, 125 2 Sheets-Sheet 2 IN VEN TOR.

" WWW ATTbRNEY.

Patented Mar. 19, 1 929.

' UNITED STATES A masts AT N'r Eric's.

. CHARLES A. ERICKSOILOF LAKEWOOD, c1110.

RADiATOR CORE.

Application filed August 24, 1925. Serial No. 51,904.

The invention relates to radiators for cooling liquids and particularly to such as are used for cooling; the water or other li uid used to cool internal combustion engines. he invention relates more specifically to a radiator section construction which has-a maximum turbulence for .both the air and cooling liquid. According to the invention each rator has positioning members enabling it a be easily and cheaply positioned ClUlll'lglllitD- ufacture. The feature of easy assembly is obtained without sacrificing any of the turbulence properties either for the air or cool ing liquid or any of the other desirable fea'' tures which should be present in a radiator section. p

Various other objects and advantagesof the invention will be obvious from the following particular description of one form of construction embodying my-invention or from an inspection of the accompanying drawings; and the invention also consists in certain new and novel features of construction and combinations of parts hereinafter set forth and claimed. H

In the accompanying drawings I have shown for purposes of illustration-one form of construction with certain modifications, thereof embodying the invention, in which Fig. 1 is an elevation of one form of radiator to which the invention may be applied; Fig. 2 is a perspective of a preferred separator construction; I i

Fig. 3 is a front elevation of a radiator section according to the invention showing both the water tube forming element and preferred separator, I

Figs. 4 and 5 are sections taken on the lines f'l and 55, respectively, of Fig. 2 showing details of construction of the preferred separator; S

Fig. 6 is a side elevation of the water tube forming element;

Fig. is a perspective of another form of separator;

Fig, 8 is a frontview of a radiatorsec tion aecordingto the invention showing the water tube forming element with the second form of separator in place;

Figs. 9 and '10 are sections taken on the lines 99 and l010, respectively, of F ig. 6 showing details of construction illustrating how either of the types of separators lit inthe water tube forming element; and p Fig. 11 is a front elevation of two adjoin ing sections showing how they are connected together andhow provision is made for the water space between them.

In the following description and in the claims parts will be identified by specific names for convenience, buttheyare intended to be as generic in their application to similar parts as the art will permit.

The radiator sections are made up of sheets ofmetal which are corrugated, bent and cut in anovcl manner according to the invention. lVhenever a part of a sheet of metal is corrugated or formed in zigzag shape it will be seen that valleys are formed on each side,

those on one side beingstaggered relatively to those on the other, a valley on one side producing a hillon the other. For ease in description in the following, the shapes of the parts are described in terms of either valleys or hills on a particular side, it being implied that the valley or hill on one side causes a hill or valley respectively on the other side.

Referring now to the drawing, Fig. 1 shows one form of radiator to which the lnvention may be applled. Theradiator is made up of sections, each section comprising a water tube and 1 0,.the water tube forming element 1 consists ofa generally rectangular box formed by bending a strip of good heat conducting material such as copper, to forma box with open front and back ends, the top and bottom preferably being narrower than the sides. ends of the strip are fastened together in any desirablemanner as by means of a soldered overlapping joint 2. The material is bent or corrugated preferably before it is bent into box shape to form positioning valleys 3 on the inside or air side extending substantially the entire depth of the section, that is,'f'r.om front to rear. The material is also bent to form second valleys 4 in the inside extending preferably at right angles to the first valleys, the material between the valleys forming bills on the The front and.

The

CIT

rear ends oi? the water tube forming element are bent, preferably before it is shaped into the box, to form attaching portions 6, the attaching portions having valleys 7 on the outside whose bottoms are coextensive with the bottoms of the positioning valleys 3.. The sides of the valleys 7 are shown as facing in an opposite direction from the sides of the valleys 3.

Adjoining sections are connected together at their front and rear ends by their attaching portions 6, preferably after the separators are placed in position. desired method may be used for this purpose so long as the hills of the attaching portions 6 of one section lit into the valleys 'i' of the attaching portions 6 of the adjo'ning sections, the attaching portions being joined preferably by solder.

This construction, as shown best in F ig. 11, provides a water space between adjoining sections, the hills produced by the positioning valleys 3 being staggered on th opposite walls of the water space, thereby providing a tortuous path for the water or large water turbulence.

To increase heat radiation or heat conduction to the air from the radiator the eliective area of each section is increased by providing each section with a separator. ()ne term of separator is shown in Figs. 2, 3, i, and

ferring to these figures, this particular type of separator is a double separator, that is, is made up of complementary sections 1e and. fitted together to form a separator 16 as shown best in Fig. 3. Each section comprises a sheet of material. bent to form alternate spacer zones A and radiating zones B. Each spacer zone A comprisesa zigzag central portion 17 forming valleys 18 on the inside or side which faces the complementary section. Each valley 18 has a portion of its side 19 extending from the bottom of the valley to the top thereof cut out and bent around its bottom to the outside or side facing the alter tube forming element to form a positioning member 20. The sheet is also cut between adjoining zones so that each iadiatinq zone B comprises a zigzag portion 9i fornung valleys 22 on the outside having their bottoms substantially coextensive with the bottoms of the valleys 18 in the spacer zones A.

It should be understood that this separator section cooperates with the similar separator section interfitting therewith in such manner that the positioning members 20 of the assembled separator project outwardly and alternately on one side and on the other. Also the projecting valleys 22 in the radiating zones of the complementary section are staggered with respect to each other, this construction being clearly shown in Fig. 3.

It will easily be seen that when the two complementary sections 14: and 15 are assembled to form the two part separator 16, the

separator can be easily positioned by sliding the separator into the space between the water tubes, its positioning members 20 sliding into the positioning valleys 3 thereof as shown in 3, 9 and 10. 7

Referring now to Figs. 7 and 8, a radiator section is shown in which a different form of separator is used, the water tubes, however, being the same as in the first construction. The separator inthis case is formed of a single sheet of good conducting material such as copper, which is bentto form a central. zigzag portion 31 with two-ply return-bent, folds 32 extending outwardly from the tops of the hills alternately on one side andthen on the other to form positioning members These positioning members, and in fact the entire separator, extends substantially the entire depth from front to rear of the radiator section. The positioningmembers 32 are adapted to be positioned within the positioning valleys 3 and secured therein as by solderin To increase the air turbulence in either of thetypes of separators holes may be punched in the positioning members or in any part of the separators.

In the construction first described it will be seen that the separator which is made up of two complen'iontary sections is so made that there is substantially no part thereof where there is double thicknesses of metal. he only parts in which a double thickness of metal occurs are the portions of the sides 19 of the spacer zones which have not been cut away to form positioning members and. wiich can be made as narrow as desired. This construction results in low cost of material. Furthermore, due to the shape or the separator a maximum natural air turbulence is obtained. which is very desirable, resulting in greater eiiieiencyof the radiator. -Also positioning members are provided which are sell-positioning in the positioning valleys of the water tube forming element, this being a very easy construction from an assembly standpoint. The provision of-extending the separator the entire depth of the section results inhigh radiation ability.

in the alternative construction the self-positioning feature of the separator between the water tubes is also present, and also the features or maximum radiation of air due to the separator extending the entire depth. of the section. 7

While I have shown and described and have pointed out in the annexed claims certain novel features of my invention, it will be understood that various omissions, substitutions and changes in the forms and details of the device illustratedand in its operation may be made by those skilled in the art without departing from the spirit 01" my invention.

Having described my invention, 1 claim:

1. A double strip separator having complementary parts, each part comprising a sheet bent to form zones, each zone comprising a zigzag port-ion forming valleys on one side, each valley having a portion cut and bent about its bottom to the other side to form a positioning member, said parts supplementing each other to forma separator having its positioning members extending outwardly.

2. A double strip separator having complementary parts, each part comprising a sheet bent to form alternate spacer zones and radiating zones, said spacer zones each comprising a zigzag portion forming valleys on one side, positioning members secured to said zigzag portion, said sheet being formed so that each radiating zone comprises a zigzag portion forming valleys on the other side having their bottoms co-incident with said first valleys, said parts supplementing each other to form a separator having its positioning members extending outwardly.

3. A separator comprising a sheet bent to form alternate spacer zones and radiating zones, said spacer zones each comprising a zigzag portion forming valleys on one side, each valley having a portion cut and bent about its bottom to the otherside to form a positioning member, said sheet being cut be tween said zones so that each radiating zone comprises a zigzag portion forming valleys on the said other side having their bottom co-incident with said first valleys.

4. A double strip separator having complementary parts, each part comprising a sheet bent to form alternate spacer zones and radiating zones, said spacer zones eachcomprising a zigzag portion forming hills and valleys, each valley having a portion cut and bent about its bottom to form a positioning member, said sheet being out between said zones so that each radiating zone comprises a zigzag portion forniing valleys having their bottoms co-incident with the bottoms of said first valleys, said parts supplementing each other to form a separator having zigzag portions with positioning members extending laterally outwardly from the top of the hills alternately on one side and on the other.

5. A radiator section comprising a water tube forming element, the walls of said element being bent to form positioning valleys extending substantially the depth of said section, and a double strip separator having complementary parts, each'part comprising a sheet bent to form alternate spacer zones and radiating zones, said spacer zones each comprising a zigzag portion forming hills and valleys, each valley havin a portion cut and bent about its bottom to iorm a positioning member, said sheet being out between said zones so that each radiating zone comprises a zigzag portion forming valleys having their bottoms co-incident with the bottoms of said first valleys, said parts supplementing each other to form a separator having a central zigzag portion with positioning members ex tending laterally outwardly from the top of the hills alternately on one side and on the other, said positioning members being positioned in said 'positioning'valleys.

6. A radiator section comprising a water tube forming element, the walls of said element being bent to form positioning valleys extending substantially the depth of said section, and a double strip separator having complementary parts, each part comprising a sheet bent to form zones, each zone comprisinga zigzag portion forming hills and valleys, each valley having a portion cut and bent about its bottom to form a positioning member, said. parts supplementing each other to form a separator having a central zigzag portion with positioning members extending laterally outwardly from the top of the hills alternately on one side and on the other, said positioning members being positioned in said positioning valleys. V

H 7. A radiator section comprising a water tube forming element, the walls of said element being bent to form positioning valleys in one side extending substantially the depth of said section, said walls being bent to form second valleys in said side extending at right angles to said positioning valleys, the material between all said valleys forming hills on the inside, the front and rear ends of said element being bent to form attaching portions, said attaching portions having valleys -whose bottoms are co-incident with the bottoms ,of said positioning valleys.

8. A radiator section comprising a water tube forming element, the walls of said element being bent to form positioning valleys in one side extending substantially the depth of said section, said walls being bent to form second valleys in said side extending at an angle to said positioning valleys, the material between all said valleys forming hills, and means for securing said element to an adj oining section, and a separator having projections positioned in said positioning valleys,- said positioning valleys being substantially unobstructed so that said separator may be easily slid into position. 7

In testimony whereof I have hereunto set my hand.

CHARLES A. 'ERICKSON. 

